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介绍了１４根箱形钢骨混凝土柱及４个由劲性混凝土柱与钢筋混凝土梁构成的组合框架节点的试验结果．提出了劲性混凝土柱正截面承载力的全过程分析、简化计算公式以及组合框架节点新的构造方案；介绍了劲性混凝土柱在我国两幢高层建筑中的应用
The test results of 14 box-shaped steel reinforced concrete columns and 4 composite frame joints consisting of stiffened concrete columns and reinforced concrete beams are introduced. The whole process analysis of the normal section bearing capacity of a stiffened concrete column, the simplified calculation formula, and the new construction scheme of the composite frame node are presented; the application of the stiff concrete column in two high-rise buildings in China is introduced.